Saw set



Dec. -2-1 1926.

W. E. KNOTT SAW SET Filed July 22, 1926 V Patented Dee. 2,1, I i r i a a weimnn n. Kuo'rr, or- Gianni) Raisins, MronIGAn, nssrenon "r PIONEER mm BUrron COMPANY, or ronenxngsrsrn, new. roan, A. conronn'rron or NEW YORK. I I I saw snr, I

Application filed duly 22, "1926. Serial No. 124,161.

This invention relates to a saw set par ends of the parts land 2. 'A short distance I ticularly adapted for settingteeth otsaws below the shoulder Saplurality of spaced of tubular or cylindrical form. One place outwardlyiextending radial projections *4 where such saws are used to a large extent are located integral with the member'l and 5 is'in sawingbutton blanks from shells in having forwardly and inwardly inclined the manufacture of pearl buttons. The outer edges as shown the upper edges of'all 0 saws require frequent changing and used of the projectionslying, in the same hori I saws have to be filed and set after use therezontal plane. The members 1. and Q'and'the of. Heretofoje-ithas been common p-rac projections 41: thereon are all formed from I 10 tice to "set-the saw teeth'individually, this an integralpiecel of metal, preferably steel,

requiring highly. skilled mechanic and and the projections i are hardened inany OU the setting of each saw taking considerable desired manner soas to be able'to resist wear tim p i and abrasion" f In the present inventionfitis an object Over the upper part-Q'otthe structure de- "and purpose thereof to provide a saw set scribed, fa second'member is placed, This,

where all; of th teeth of a cyli drical saw second member comprises a cylindrical body may be set simultaneously and with which of metal 50f larger diam er than the first skilled labor is not needed, one blow of a d s ribed member 1*or its extension 2, the

hammer or liketool on the set voi-myin'vensame being interiorly bored from its lower 20 tion being all that isrequired, and no parend upwardlynearly to its upper end,.mak-' ticular or extra care or skill being needed. il g h cylindrical opening 6 into-which the Y A further object of the invention is to make Pe 2B inserted. At the I WB d 0' h a tool for setting cylindrical or tubular saws body 5 the opening, is slightly enlarged in which is simple in construction,easilymanudiameter, as at 7,1whereby theupper end S! iactured at low cost, and which is durable of the lower and larger section 2ma-y be. re-

and efiicient in service. To these ends, as ceivedtherein, the shoulder8 seating against well as many others, not at this time specifi-' the upper end of'the recess at 7 Y 1 v cally stated, but whichwill appear as un- The lower end of the body 5 is milledto V derstandingofthe invention is had, I have form a consecutive series of spaced apart I made the construction described in the'fol downwardly extendingprojections-8, each lowing description and illustrated inthe ac of which on'its inner sideis out with anup & companying drawing, in which, ward and inward incline, making the in-' Fig. 1 is an enlargedcentral vertical secchned inner faces 9. When the body 5 is tion through'the sawset, showing the same placed over the part 2, the pro-jections 4; II as used in setting a cylindrical saw. I come between the projections 8'0n the body I Fig. 2 is a perspective view ofthe'saw 5, and the upper horizontal edges: ofsaid no set of my invention. 1 pI'OJCtlOIlS 4 lieia very shortndista-nce be- Fi 3 ig tiv iew f the s w low the upper s1des..o-f"theslots in which and upper end of the holder therefor which y are o ated we n said 'pl'0jeetions 8.

M is to be set with the said device. A pin 1 0 is passed through'the body 5 and Fig. lis a perspective view of the upper part 2 in order to securely hold the same 8 member of the saw set, and against movement with respect to each other.

Fig. 5 is a perspectiveview of the lower The proj ti s 4 and 8 a qua in u member of the saw set, the same bein her to the teeth in a-saw to be set. The saw 8 connected with the upper member i th is ordinarily held in a cylindrical holder 11, assembled device. Y having a reduced upper end portion 11*, 1B0

Like reference characters refer to alike. there being a central longitudinal cylindria t .in the different figuresv oi the drawcal opening 12 through the holder. Thesaw ing. Y Y i tubular or cylindrical iorm'is held at II In the construction of the saw set, a cylinthe upper end of the reduced portion 11 in drical member 1 is provided, at the upper" a cylindrical recess somewhat larger in di- 1051 end of which is a cylindrical extension 2 of, ameter than the diameter of the opening 12, smaller diameter integral 'with the part 1, the teeth 14015 the saw being presented upthere being a shoulder 23' at the adjoining wardly to the sawset. Thesawset is applied to the saw by inserting the lower guide portionl into the opening 12. Each alternate tooth of the saw is brought against the inclinedouter edge of a projection 4l,and the 5 other teeth'against the inner inclined sides oftheprojections 8. By striking the upper end of the bdy'5 a blow with any suitable hammer or mallet, all of the teeth will be properly set at one and the same time, the 1 saw teeth alternately being bent inwardly and outwardly as is desired. The material W of thebody and its saw setting projections i 8 is alsosu'ch that it may be properly hardened to resist wear and abrasion such as might result from contact with the tempered steelisaw teeth. V i V p This saw set described is very practical and eiiicient. It saves large expense in the skilled labor heretofore required to set the 29 teeth'ofcylindrical saws, and insures that all oftheteeth shall be properly set, doing better work than the best of skilledmechan- 'ics. The construction is simple, and easily manufactured at low cost. The invention is definedin the appended claims, and is to be considered comprehensive of all forms 01": structure coming within their scope.

I claim: 1. A: device of the class described, com- 30 prising a body formed at its lower end with a pluralityof spaced downwardly extending gprojections having upwardly and inwardly inclined 'inner'sides, and a member located at the lower endof said body having a plurality of outwardly extending projections spaced apart and extending into the spaces i between said first named projections and having downwardly and inwardly inclined outer edges. V

2. A device of the. class described, comprising a cylindrical body formed at its lower end with a plurality of equally spaced downwardly extending projections having upwardly and inwardly inclined inner sides, and a member connected to said body at its lower end having a plurality of equally -;spaced radially extending projections with inwardly .and downwardly inclined outer edges, said last named projections lying bespaced radial outwardly extending prising a cylindrical body tween the first named projections, with the planes of the inner sides of said first named projections crossing the planes of the outer edges of the last named projections.

3. A device of the class described, comprising a cylindrical'body having an opening formed therein from its lowerend upwardly for a distance and having, at its lower end, a plurality downwardly extending projections with upwardly and inwardly inclined inner sides, and a member having an upper portion inserted into said opening in the body and secured to said body and having a plurality of projections located in the spaces between the first named projections and having downwardly and inwardly inclined outer edges,

4:. A device of the class described, a construction having the elements in combination defined in claim 3, combined with a downwardly extending guide rod connected to and located below ,and in alinement with said member. 7

5. A device oi the class described, comhaving a cylindrical opening formed therein from its lower end upwardly for a distance, said opening at its lower end being increased in diameter over its upper portion, said body also having a plurality of equally spaced projections at its lower end formed with upwardly and inwardly inclined inner sides su rounding said opening, and a member comprising an upper cylindrical section and a lower cylindrical section of larger diameter connected to said body with the upper cylindrical section received in the opening in the body and with the upper end of the larger lower cylindrical section received portion of said opening, and a plurality of spaced radial out-wardly extending projections adjacent the upper end ofsaid larger lower section of said member located be-' tween the first named projections-and having downwardly. and inwardly inclined outer edges.

In testimony whereof I aiiix my signature.

WARREN E. KNOTT.

of equally spaced in the enlarged lower end 

